Bed Evolution Processes after Falling Works Removal

• Project/Area Number: 22560511
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Hydraulic engineering
• Research Institution: The University of Tokushima
• Principal Investigator: MUTO Yasunori 徳島大学, 大学院・ソシオテクノサイエンス研究部, 教授 (40263157)
• Co-Investigator(Kenkyū-buntansha): ZHANG Hao 京都大学, 防災研究所, 助教 (90452325)
• Project Period (FY): 2010 – 2012
• Project Status: Completed (Fiscal Year 2012)
• Budget Amount: ¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000); Fiscal Year 2012: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000); Fiscal Year 2011: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000); Fiscal Year 2010: ¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
• Keywords: 河川工学 / 河道横断構造物 / 河床変動 / 砂州 / 生息場基盤 / 水理実験 / 数値シミュレーション

Research Abstract

Bed evolution processes in both the upstream and downstream of a falling works after its partial removal were investigated experimentally. Numerical simulation model for bed evolution with a 2-D unstructured mesh was also developed and applied to the datasets obtained in the experiments and the field. Equilibrium bed configurations and their developing processes are influenced by several parameters such as initial setup of the structure, its removal shape and bed material distributions. The results indicate that complex 3-D flow behavior and resultant sediment motions including their sorting induced after the removal are the crucial issues for application to real rivers.

Research Products

• [Journal Article] Weir removal and its influence on hydro-morphological features of upstream channel (2012)
  • Author(s): Zhang, H., Muto, Y., Nakagawa, H. and Nakanishi, S
  • Journal Title: Journal of Japan Society of Civil Engineers, Ser. A2 (Applied Mechanics (AM)) Volume: 68 Issue: 2 Pages: I_591-I_599
  • DOI: 10.2208/jscejam.68.I_591
  • NAID: 130004557304
  • ISSN: 2185-4661
  • Peer Reviewed
• [Journal Article] Upstream channel responses due to partial removal of a weir, Annuals of Disaster Prevention Research Institute (2012)
  • Author(s): Zhang, H., Muto, Y., Nakagawa,H. and Nakanishi, S
  • Journal Title: Kyoto University Volume: No.55B Pages: 437-451
• [Journal Article] Impact of weir removal on channeldynamics in non-uniform sediment beds (2011)
  • Author(s): Zhang, H., Muto, Y., Nakagawa, H
  • Journal Title: Journal of JSCE Volume: Vol.67 Pages: 625-634
  • NAID: 130004557205
  • Peer Reviewed
• [Journal Article] Impacts of weir removal on channel dynamics in non-uniform sediment beds (2011)
  • Author(s): Zhang, H., Muto, Y., 他2名
  • Journal Title: 土木学会論文集A2(応用力学) Volume: 67 Pages: 1625-634
  • NAID: 130004557205
  • Peer Reviewed
• [Journal Article] Bed Evolution Process after Dam Removal in the Upstream Reach (2010)
  • Author(s): Muto, Y., Zhang, H., 他1名
  • Journal Title: Proc.Int'l Symp.on River Sedimentation 2010 Volume: (CD-ROM)
  • Peer Reviewed
• [Journal Article] 大都市における防災と環境の調和した親水空間の創出 (2010)
  • Author(s): 張浩, 他2名
  • Journal Title: アジアメガシティー"深〓市"における人間安全保障工学の展開に関するシンポジウム Volume: (CD-ROM)
  • Peer Reviewed
• [Journal Article] Local scour and sediment size variation around a spur dyke (2010)
  • Author(s): Zhang, H., 他2名
  • Journal Title: Proc.Int'l Syrup.on River Sedimentation 2010 Volume: (CD-ROM)
  • Peer Reviewed
• [Presentation] 固定堰の部分撤去に伴う流路変動について (2013)
  • Author(s): 住田英之
  • Organizer: 土木学会四国支部技術研究発表会
  • Place of Presentation: 松山市
  • Year and Date: 2013-05-11
• [Presentation] An experimental study on bed evolution around partially removed falling works (2013)
  • Author(s): Muto. Y
  • Organizer: IAHR World Congress
  • Place of Presentation: 成都センチュリーホテル(中国成都)
• [Presentation] Effects of low head dam removal on channel morphology and process (2013)
  • Author(s): Zhang, H
  • Organizer: IAHR World Congress 2013
  • Place of Presentation: 成都センチュリーホテル(中国成都)
• [Presentation] AN EXPERIMENTAL STUDY ON BED EVOLUTION AROUND PARTIALLY REMOVED FALLING WORKS (2013)
  • Author(s): Muto, Y., et al.
  • Organizer: IAHR World Congress 2013
  • Place of Presentation: 成都センチュリーシティーホテル（中国）
• [Presentation] Effects of low head dam removal on channel morphology and process, (2013)
  • Author(s): Zhang, H., et al.
  • Organizer: IAHR World Congress 2013
  • Place of Presentation: 成都センチュリーシティーホテル（中国）
• [Presentation] 固定堰の部分撤去に伴う流路変動について (2013)
  • Author(s): 住田英之，他
  • Organizer: 土木学会四国支部技術研究発表会
  • Place of Presentation: 愛媛大学（愛媛県）
• [Presentation] Upstream channelresponses due to partial removal of a weir (2012)
  • Author(s): Zhang, H
  • Organizer: 京都大学防災研究所研究発表講演会
  • Place of Presentation: 宇治市
  • Year and Date: 2012-02-22
• [Presentation] Upstream Channel Responses due to Partial Removal of a Weir (2012)
  • Author(s): Zhang, H., Muto, Y., 他2名
  • Organizer: 京都大学防災研究所平成23年度研究発表講演会
  • Place of Presentation: 京都大学(京都府)
  • Year and Date: 2012-02-22
• [Presentation] Upstream bed evolution after partial removal of a low head dam (2012)
  • Author(s): Zhang, H
  • Organizer: Japan-China Symposium on Advances in Water and Sediment Research
  • Place of Presentation: 京都テルサ(京都市)
• [Presentation] Upstream bed evolution after partial removal of a low head dam (2012)
  • Author(s): Zhang, H., et al.
  • Organizer: Japan-China Symposium on Advances in Water and Sediment Research
  • Place of Presentation: 京都大学（京都府）
• [Presentation] 取水堰上流部における堆積河床地形の詳細計測 (2011)
  • Author(s): 武藤裕則
  • Organizer: 土木学会四国支部技術研究発表会
  • Place of Presentation: 高松市
  • Year and Date: 2011-05-14
• [Presentation] 取水堰上流部における堆積河床地形の詳細計測 (2011)
  • Author(s): 武藤裕則・張浩, 他2名
  • Organizer: 土木学会四国支部平成23年度技術研究発表会
  • Place of Presentation: 香川大学(香川県)
  • Year and Date: 2011-05-14
• [Presentation] Bed evolution process after dam removal in the upstream reach (2010)
  • Author(s): Muto. Y
  • Organizer: International Symposium on River Sedimentation
  • Place of Presentation: ステレンボシュ大学(南アフリカステレンボシュ)
  • Year and Date: 2010-09-09
• [Remarks]
  • URL: http://hydrology-lab.sakura.ne.jp/